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authorShaohua Li <shli@kernel.org>2012-12-14 11:15:36 +0800
committerJens Axboe <axboe@kernel.dk>2012-12-14 20:46:04 +0100
commit8dd2cb7e880d2f77fba53b523c99133ad5054cfd (patch)
treeea51e89f8c8bf9ca8e888d68ecf6732a52e8e99d /block/blk-map.c
parent75274551c81796b636c5acb0c2597dec7ec2e6c4 (diff)
block: discard granularity might not be power of 2
In MD raid case, discard granularity might not be power of 2, for example, a 4-disk raid5 has 3*chunk_size discard granularity. Correct the calculation for such cases. Reported-by: Neil Brown <neilb@suse.de> Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-map.c')
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